diff options
| author | Sameer Pujar <spujar@nvidia.com> | 2020-07-19 08:01:26 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-07-22 01:26:14 +0300 |
| commit | f74028e159bb8e1de840d945af344bf93b59ada2 (patch) | |
| tree | fadc221712737a40387a14b038f2cbcf4f9f599a /sound/soc/tegra/tegra_pcm.h | |
| parent | 327ef64702668bb754eeea80ce402454d7a1302a (diff) | |
| download | linux-f74028e159bb8e1de840d945af344bf93b59ada2.tar.xz | |
ASoC: tegra: Add Tegra210 based ADMAIF driver
ADMAIF is the interface between ADMA and AHUB. Each ADMA channel that
sends/receives data to/from AHUB must intreface through an ADMAIF channel.
ADMA channel sending data to AHUB pairs with an ADMAIF Tx channel and
similarly ADMA channel receiving data from AHUB pairs with an ADMAIF Rx
channel. Buffer size is configurable for each ADMAIF channel, but currently
SW uses default values.
This patch registers ADMAIF driver with ASoC framework. The component
driver exposes DAPM widgets, routes and kcontrols for the device. The DAI
driver exposes ADMAIF interfaces, which can be used to connect different
components in the ASoC layer. Makefile and Kconfig support is added to
allow to build the driver. The ADMAIF device can be enabled in the DT via
"nvidia,tegra210-admaif" compatible binding.
Tegra PCM driver is updated to expose required PCM interfaces and
snd_pcm_ops callbacks.
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/1595134890-16470-8-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/tegra/tegra_pcm.h')
| -rw-r--r-- | sound/soc/tegra/tegra_pcm.h | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/sound/soc/tegra/tegra_pcm.h b/sound/soc/tegra/tegra_pcm.h index 0433372e68d4..4838cdcee20e 100644 --- a/sound/soc/tegra/tegra_pcm.h +++ b/sound/soc/tegra/tegra_pcm.h @@ -17,8 +17,27 @@ #ifndef __TEGRA_PCM_H__ #define __TEGRA_PCM_H__ -struct snd_dmaengine_pcm_config; +#include <sound/dmaengine_pcm.h> +#include <sound/asound.h> +int tegra_pcm_construct(struct snd_soc_component *component, + struct snd_soc_pcm_runtime *rtd); +void tegra_pcm_destruct(struct snd_soc_component *component, + struct snd_pcm *pcm); +int tegra_pcm_open(struct snd_soc_component *component, + struct snd_pcm_substream *substream); +int tegra_pcm_close(struct snd_soc_component *component, + struct snd_pcm_substream *substream); +int tegra_pcm_hw_params(struct snd_soc_component *component, + struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params); +int tegra_pcm_hw_free(struct snd_soc_component *component, + struct snd_pcm_substream *substream); +int tegra_pcm_mmap(struct snd_soc_component *component, + struct snd_pcm_substream *substream, + struct vm_area_struct *vma); +snd_pcm_uframes_t tegra_pcm_pointer(struct snd_soc_component *component, + struct snd_pcm_substream *substream); int tegra_pcm_platform_register(struct device *dev); int tegra_pcm_platform_register_with_chan_names(struct device *dev, struct snd_dmaengine_pcm_config *config, |